Heat sink



FIG. 1 shows a top plan view of a heat sink.

FIG. 2 shows a front elevation view of the heat sink of FIG. 1, the rearview being a mirror image of the front view.

FIG. 3 shows a bottom plan view of the heat sink of FIG. 1.

FIG. 4 shows a left side elevation view of the heat sink of FIG. 1, theright side being a mirror image of the left side.

FIG. 5 shows a top perspective view of the heat sink of FIG. 1; and,

FIG. 6 shows a bottom perspective view of the heat sink of FIG. 1.

Portions or features of the lighting component shown in broken lines inthe drawings form no part of the claimed design.

The ornamental design for a heat sink, as shown and described.